The public view is the crawlable proof. The same sourced dataset is available through REST and MCP for agents, research scripts, and back-office tools.
This stock page is the Follow view. The Build view lets your agent query MMI owners, fund changes, insider filings, and source links through REST or MCP.
curl -H "Authorization: Bearer YOUR_API_KEY" \ "https://arkolith.com/api/v1/stocks/MMI"
Use Arkolith to show who owns MMI, which funds added or reduced it, and which SEC filings prove each claim.
| # | Fund | Position value | Shares | Last move | As of | History |
|---|---|---|---|---|---|---|
| 1 | BlackRock, Inc. | $104.5M | 3.9M | ▲+1.6% Added · +60K sh | Q1 2026 | |
| 2 | VANGUARD GROUP INC | $104.2M | 3.8M | ▲+2.3% Added · +87K sh | Q4 2025 | |
| 3 | VANGUARD PORTFOLIO MANAGEMENT LLC | $68.3M | 2.6M | ▲New +2.6M sh | Q1 2026 | |
| 4 | PZENA INVESTMENT MANAGEMENT LLC | $53.5M | 2.0M | ▲+228% Added · +1.4M sh | Q1 2026 | |
| 5 | DIMENSIONAL FUND ADVISORS LP | $39.4M | 1.5M | ▲+3.0% Added · +43K sh | Q1 2026 | |
| 6 | VANGUARD CAPITAL MANAGEMENT LLC | $28.2M | 1.1M | ▲New +1.1M sh | Q1 2026 | |
| 7 | STATE STREET CORP | $25.2M | 938K | ▼−1.3% Reduced · −13K sh | Q1 2026 | |
| 8 | SCHRODER INVESTMENT MANAGEMENT GROUP | $24.4M | 931K | ▲+54% Added · +326K sh | Q1 2026 | |
| 9 | GEODE CAPITAL MANAGEMENT, LLC | $17.2M | 645K | ▲+2.7% Added · +17K sh | Q1 2026 | |
| 10 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC | $11.5M | 434K | ▲+13% Added · +48K sh | Q1 2026 | |
| 11 | TWO SIGMA INVESTMENTS, LP | $11.3M | 424K | ▲+99% Added · +211K sh | Q1 2026 | |
| 12 | Qube Research & Technologies Ltd | $8.1M | 306K | ▼−4.5% Reduced · −14K sh | Q1 2026 | |
| 13 | DEPRINCE RACE & ZOLLO INC | $6.8M | 257K | ▼−2.8% Reduced · −7K sh | Q1 2026 | |
| 14 | NORTHERN TRUST CORP | $6.5M | 244K | ▲+5.0% Added · +12K sh | Q1 2026 | |
| 15 | Russell Investments Group, Ltd. | $6.0M | 226K | ▲+12% Added · +25K sh | Q1 2026 | |
| 16 | RENAISSANCE TECHNOLOGIES LLC | $5.8M | 220K | ▼−16% Reduced · −41K sh | Q1 2026 | |
| 17 | SPROTT INC. | $5.6M | 210K | ▲+24% Added · +40K sh | Q1 2026 | |
| 18 | MORGAN STANLEY | $4.9M | 185K | ▼−14% Reduced · −31K sh | Q1 2026 | |
| 19 | AQR CAPITAL MANAGEMENT LLC | $4.8M | 182K | ▲+228% Added · +127K sh | Q1 2026 | |
| 20 | Nuveen, LLC | $4.7M | 176K | ▲+95% Added · +86K sh | Q1 2026 | |
| 21 | ENVESTNET ASSET MANAGEMENT INC | $4.5M | 169K | ▲+22% Added · +31K sh | Q1 2026 | |
| 22 | D. E. Shaw & Co., Inc. | $4.4M | 164K | ▼−14% Reduced · −28K sh | Q1 2026 | |
| 23 | Bank of New York Mellon Corp | $4.4M | 164K | ▲+3.6% Added · +6K sh | Q1 2026 | |
| 24 | SEI INVESTMENTS CO | $4.4M | 164K | ▲+100% Added · +82K sh | Q1 2026 | |
| 25 | JACOBS LEVY EQUITY MANAGEMENT, INC | $4.2M | 160K | ▲+115% Added · +86K sh | Q1 2026 |
Holders and values reflect the 13F filers Arkolith currently tracks, not the entire institutional universe. Counts and totals are a floor, not the full institutional ownership.
| Date | Insider | Role | Action | Shares | Value |
|---|---|---|---|---|---|
| Jun 11, 2026 | Nadji Hessam | Chief Executive Officer, Director | Sell (S) | 500 | $15K |
| Jun 10, 2026 | Nadji Hessam | Chief Executive Officer, Director | Gift (G) | 500 | $0 |
| Jun 10, 2026 | Nadji Hessam | Chief Executive Officer, Director | Gift (G) | 5K | $0 |
| Mar 13, 2026 | Nadji Hessam | Chief Executive Officer, Director | Sell (S) | 1K | $33K |
| Mar 12, 2026 | Nadji Hessam | Chief Executive Officer, Director | Gift (G) | 1K | $0 |
| Mar 11, 2026 | Nadji Hessam | Chief Executive Officer, Director | Gift (G) | 6K | $0 |
| Mar 10, 2026 | LaBerge Gregory A. | SVP & Chief Client Officer | Option exercise (M) | 769 | — |
| Mar 10, 2026 | DeGennaro Steven F. | EVP and CFO | Option exercise (M) | 9K | $0 |
| Mar 10, 2026 | DeGennaro Steven F. | EVP and CFO | Option exercise (M) | 3K | $0 |
| Mar 10, 2026 | DeGennaro Steven F. | EVP and CFO | Option exercise (M) | 2K | $0 |
| Mar 10, 2026 | DeGennaro Steven F. | EVP and CFO | Option exercise (M) | 1K | $0 |
| Mar 10, 2026 | DeGennaro Steven F. | EVP and CFO | Option exercise (M) | 1K | $0 |
| Company | Co-held by | Combined value |
|---|---|---|
| MICROSOFT CORPMSFT | 55 funds | $22.9B |
| AMAZON.COM INCAMZN | 53 funds | $18.0B |
| ELEVANCE HEALTH INCELV | 53 funds | $1.9B |
| CENTENE CORPCNC | 53 funds | $819.9M |
| ALPHABET INC-CL AGOOGL | 52 funds | $15.2B |
| CITIGROUP INCC | 52 funds | $4.3B |
| CHEVRON CORPCVX | 52 funds | $3.1B |
| CAPITAL ONE FINANCIAL CORPCOF | 52 funds | $2.5B |
| GENERAL MOTORS COGM | 52 funds | $2.1B |
| CUMMINS INCCMI | 52 funds | $1.5B |
| INTERCONTINENTAL EXCHANGE INICE | 52 funds | $1.1B |
| BROADCOM INCAVGO | 51 funds | $12.7B |
Ranked by how many of MMI's institutional holders also hold each name, a cross-fund conviction signal. Via the MCP server (ticker.co_held).
13F holdings + Form 4 insider transactions + end-of-day price history + the live filing stream, joined for MMI. Filings are public domain, sourced to SEC EDGAR; price series derived from end-of-day closes. Every panel above is one call to the Arkolith API & MCP server.